EP0330277A2 - Dispositif pour coller une pluralité de guides ondes lumière à un câble en forme de ruban - Google Patents

Dispositif pour coller une pluralité de guides ondes lumière à un câble en forme de ruban Download PDF

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Publication number
EP0330277A2
EP0330277A2 EP89200409A EP89200409A EP0330277A2 EP 0330277 A2 EP0330277 A2 EP 0330277A2 EP 89200409 A EP89200409 A EP 89200409A EP 89200409 A EP89200409 A EP 89200409A EP 0330277 A2 EP0330277 A2 EP 0330277A2
Authority
EP
European Patent Office
Prior art keywords
adhesive
inlet channel
cross
channel
outlet channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP89200409A
Other languages
German (de)
English (en)
Other versions
EP0330277A3 (fr
Inventor
Peter Wirtz
Hans-Peter Caspar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Patentverwaltung GmbH
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Patentverwaltung GmbH, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Patentverwaltung GmbH
Publication of EP0330277A2 publication Critical patent/EP0330277A2/fr
Publication of EP0330277A3 publication Critical patent/EP0330277A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • G02B6/448—Ribbon cables

Definitions

  • the invention relates to a device for gluing a plurality of optical fibers to a flat ribbon.
  • the invention has for its object to provide a device of the type mentioned, with which consistently flat and tension-free glued fiber ribbon can be produced.
  • the device has an adhesive space in which an inlet channel and opposite an outlet channel for the plurality of optical fibers open, that the cross sections of the inlet channel and the outlet channel are approximately rectangular and are excessively adapted to the dimensions of the adjacent optical fibers, and that the adhesive space is filled with adhesive under such excess pressure that a drop of adhesive is formed at the insertion opening of the inlet channel when the optical fiber is pulled through.
  • the fiber optic cables are wetted with adhesive on all sides without bubbles. Since a drop of adhesive is always pushed up on the inlet surface of the inlet channel, air pockets in the adhesive are prevented.
  • An extremely compact flat ribbon shape with low adhesive consumption is achieved in that a rectangular nozzle is arranged at the end of the outlet channel, the cross section of which is so narrow compared to that of the outlet channel that the narrow sides of the largest possible thickness of an optical fiber and the range of the largest possible tolerance of the entirety of the tolerance range LWL corresponds.
  • a quick, jam-free passage of the FO is favored by the fact that the excess of the cross-sectional sides of the inlet duct and / or the outlet duct is 0.2 to 0.4 times the thickness of an FO.
  • the length of the inlet channel and / or the outlet channel is 15 to 30 times the fiber bandwidth. It has proven to be advantageous that the inlet channel and / or the outlet channel have an inlet cross section which widens in a funnel shape.
  • the adhesive which is pushed up by the inlet channel, is not impaired by an oxidizing atmosphere, it is provided in a preferred embodiment that the inlet area of the inlet channel is surrounded by an inert gas.
  • the inlet channel protrudes through a collecting space counter to the direction of gravity, into which a drain line for excess adhesive emerging from the inlet channel opens.
  • the aim should be to have a rectangular nozzle that is as narrow as possible, the clear opening of which, if possible, is no larger than a rectangle that envelops the closely and flatly lying optical fibers.
  • the precise adjustment of the clear opening of a rectangular nozzle is made possible by the fact that the inner surfaces of the rectangular nozzle are formed by four adjoining adjusting blocks, each of which adjusts the cross-sectional dimensions of the rectangular nozzle against one of the neighboring blocks in the direction of the narrow cross-sectional side and opposite the other neighboring block can be moved in the direction of the wider cross-sectional side.
  • the adjusting blocks can be displaced against a spring force by means of fixable profit bolts.
  • FIG. 1 seven optical waveguides 2 provided with a primary coating are glued to one another directly by adhesive bridges 3, which are to be formed symmetrically in the same way on both sides of the resulting flat strip.
  • Non-uniform adhesive bridges can cause distortions such as curvatures of the cross-sectional shape or corrugations in the longitudinal course of the fiber optic ribbon over the cross section or the length of the ribbon. This also causes additional attenuation in the fiber optic cables.
  • a plurality of optical fibers 2 provided with a primary coating are introduced through the opening 4 into the device shown in FIG. 2 and attached to a support frame 5.
  • the optical waveguides led out of the opening 8 with a configuration according to FIG. 1 are passed through a hardening device, not shown, for example through a UV radiation chamber for curing an acrylic adhesive that can be cross-linked by ultraviolet light.
  • the housing block 9 is heated by means of an electrically heatable heating sleeve 33 in order to reduce the viscosity of the adhesive.
  • the temperature is measured by the thermal sensor 34, which supplies an actual value for a temperature control.
  • the fiber optic cables 2 are first led through the long inlet channel 10 into the adhesive space 7 and then through the likewise long outlet channel 11, at the end of which a narrow rectangular nozzle 32 is arranged.
  • the channels 10 and 11 are formed by channel inserts 12 and 13, respectively, which have a rectangular passage cross-section (cf. item 14 in FIG. 3), which widens in the shape of a funnel in the region of the insertion openings 15.
  • the side lengths of the passage cross-section are 1.3 times or (n + 0.3) times the thickness of an optical fiber 2, where n is the number of optical fibers 2 to be combined to form a flat strip.
  • the rectangular nozzle 32 must be adapted as precisely and closely as possible to the flat ribbon configuration according to FIG. 1, the greatest possible thickness tolerances of the diameter of the optical fiber 2 to be processed, of course, being observed.
  • adjusting blocks 20, 21, 22 and 23 are arranged in a guide body 19.
  • the adjusting block 20 is immovable and could also be part of the guide body 19.
  • the adjusting blocks 21, 22 and 23 are linearly displaceable in the guide body 19 by means of adjusting screws 24 and 25, the travel of which can be fixed by lock nuts 26 and 27, respectively.
  • the adjusting blocks 21 and 23 can be displaced counter to the compression spring 28, as a result of which the wider rectangle side of the rectangular nozzle 32 can be changed.
  • the narrow side of the rectangular nozzle 32 can be adapted to the diameter of the optical fiber 2 by moving the adjusting blocks 21 and 22 against the compression spring 29.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)
EP89200409A 1988-02-26 1989-02-20 Dispositif pour coller une pluralité de guides ondes lumière à un câble en forme de ruban Withdrawn EP0330277A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3806010 1988-02-26
DE19883806010 DE3806010A1 (de) 1988-02-26 1988-02-26 Vorrichtung zum verkleben einer mehrzahl von lichtwellenleitern zu einem flachband

Publications (2)

Publication Number Publication Date
EP0330277A2 true EP0330277A2 (fr) 1989-08-30
EP0330277A3 EP0330277A3 (fr) 1990-04-04

Family

ID=6348203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89200409A Withdrawn EP0330277A3 (fr) 1988-02-26 1989-02-20 Dispositif pour coller une pluralité de guides ondes lumière à un câble en forme de ruban

Country Status (2)

Country Link
EP (1) EP0330277A3 (fr)
DE (1) DE3806010A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543252A1 (fr) * 1991-11-22 1993-05-26 kabelmetal electro GmbH Procédé de fabrication d'un câble de guides d'ondes lumineuses
EP0582944A1 (fr) * 1992-08-11 1994-02-16 Siemens Aktiengesellschaft Méthode et dispositif pour la fabrication d'un guide d'ondes lumineuses à ruban

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1508128A (en) * 1974-06-17 1978-04-19 Agfa Gevaert Extrusion die assembly with adjustable orifice
NL8403629A (nl) * 1984-05-23 1985-12-16 Philips Nv Optische bandkabel, methode voor de vervaardiging ervan en een uit verscheidene bandkabels samengestelde optische kabel.
US4720165A (en) * 1985-02-25 1988-01-19 Mitsubishi Rayon Company Ltd. Optical fiber sheet and method and apparatus for fabrication thereof
DE3606626A1 (de) * 1986-02-28 1987-09-03 Siemens Ag Flachbandleitung mit mehreren lichtwellenleitern und verfahren zu deren herstellung
US4810429A (en) * 1986-07-31 1989-03-07 Siemens Aktiengesellschaft Method and apparatus for the manufacture of filled optical transmission elements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543252A1 (fr) * 1991-11-22 1993-05-26 kabelmetal electro GmbH Procédé de fabrication d'un câble de guides d'ondes lumineuses
EP0582944A1 (fr) * 1992-08-11 1994-02-16 Siemens Aktiengesellschaft Méthode et dispositif pour la fabrication d'un guide d'ondes lumineuses à ruban
US5486378A (en) * 1992-08-11 1996-01-23 Siemens Aktiengesellschaft Method and apparatus for manufacturing an optical ribbon conductor

Also Published As

Publication number Publication date
DE3806010A1 (de) 1989-09-07
EP0330277A3 (fr) 1990-04-04

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